#ifndef CLIENT_HANDLER_H
#define CLIENT_HANDLER_H

#include "freertos/FreeRTOS.h"
#include <stdbool.h>
#include <stddef.h>
#include <stdint.h>
#include <stdio.h>
#include <string.h>
#include <sys/_intsup.h>
#include <sys/types.h>

#define MAX_CLIENTS 16
#define MAC_LENGTH 6

enum ClientErrors {
  CLIENT_OK = 0,
  CLIENT_EXISTS = -1,
  CLIENT_DOES_NOT_EXISTS = -2,
  CLIENT_LIST_FULL = -3,
  CLIENT_INVALID_ID = -4,
};

typedef enum {
  OTA_IDLE,
  OTA_AWAITING_ACK,
  OTA_PREPARING,
  OTA_READY,
  OTA_UPDATING,
  OTA_FAILED,
  OTA_SUCCESS,
} ota_status_t;

typedef struct {
  bool slotIsUsed;
  bool isAvailable;
  uint8_t clientID;
  uint8_t macAddr[MAC_LENGTH];
  TickType_t lastSuccessfullPing;
  TickType_t lastPing;
  uint16_t clientVersion;
  ota_status_t ota_status;
  uint16_t current_block_id;
  uint32_t chunk_bitmask;
  uint32_t resent_chunks_counter;
  uint8_t retry_counter;
  TickType_t last_seen;
} ClientInfo;

typedef struct {
  ClientInfo Clients[MAX_CLIENTS];
  uint8_t ClientCount;
} ClientList;

int get_client_id(ClientList *list, const uint8_t *client_mac);
int add_client(ClientList *list, const uint8_t *client_mac);
int remove_client(ClientList *list, const uint8_t clientid);
int get_next_free_slot(ClientList *list);

#endif